JP3077037U - Winding core fixing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a winding core fixing device of a type in which a rotating body 8 is pressed against an inner peripheral surface of a winding core 1 to thereby fix the winding core. To be done. SOLUTION: A plurality of pins 6 are arranged at angular intervals around a winding shaft, a plurality of supporting shafts 7 are combined therewith, a plurality of rotating bodies 8 are combined with each supporting shaft, and elastic biasing means is provided. 11, each rotating body is elastically urged, and each support shaft swings around its pin, and among the rotating bodies at the upstream end and the downstream end of the support shaft, the downstream rotating body is the inner periphery of the winding core. Touch the surface.

Description

[Detailed description of the invention]

[0001]

[Field of invention]

 This invention relates to a winding core fixing device.

[0002]

[Prior art and its problems]

 For example, in a slitter that slits a web such as paper or plastic film, when the slit web is wound on a winding core, various types of winding core fixing devices have been used. The applicant has developed and proposed a new configuration of the winding core fixing device. That is what is described in Utility Model Registration No. 3063928. In the device of the publication, a plurality of pins are arranged at angular intervals around a winding shaft, and the pins extend in the axial direction of the winding shaft. Further, a plurality of spindles are combined with the spindle, and the spindle extends in a rotation direction of the winding shaft and has an upstream end and a downstream end in the rotation direction. Each support shaft is swingably supported by each pin, and protrudes from both sides of each pin. Further, a plurality of rotating bodies are combined with the rotating bodies, and the rotating bodies are provided at the upstream end and the downstream end of each support shaft. Therefore, with the rotation of the take-up shaft, each support shaft swings around its pin, and among the rotary members at the upstream end and the downstream end of the support shaft, the rotary member at the downstream end is the inner peripheral surface of the take-up core. Contact Further, with the rotation of the winding shaft, the rotating body at the downstream end is pressed against the inner peripheral surface of the winding core and bites, whereby the winding core is locked and fixed.

However, in the case of this device, there is a problem in the responsiveness of the rotating body and the support shaft to the rotation of the take-up shaft. Even if the take-up shaft rotates, the respective support shafts do not swing properly, and Of the rotating bodies at the upstream end and the downstream end of the shaft, the rotating body at the downstream end may not contact the inner peripheral surface of the winding core. For this reason, the winding core may not be locked or fixed by the rotating body, and there has been a strong demand for improvement.

[0004]

[Purpose of the invention]

 Therefore, the present invention provides a winding core fixing device in which a rotating body or a non-rotating body is pressed against the inner peripheral surface of the winding core, thereby fixing the winding core. It was done for the purpose of making it so.

[0005]

[Structure of device]

 According to the invention, a plurality of pins are arranged at angular intervals around the winding shaft, the pins extending in the axial direction of the winding shaft. This is the same as that disclosed in Japanese Utility Model Registration No. 3063928. Further, a plurality of spindles are combined with the spindle, the spindle extends in the rotation direction of the winding shaft, and has an upstream end and a downstream end in the rotation direction, similarly to the publication, and each spindle is connected to each pin. It is also swingably supported and protrudes from both sides of each pin in the same manner as in the publication. A plurality of rotating bodies are combined with each spindle, and the rotating bodies are provided at the upstream end and the downstream end of each spindle, similarly to the publication. According to the present invention, each rotating body is elastically urged by the elastic urging means, and each support shaft swings around its pin, and among the rotary bodies at the upstream end and the downstream end of the support shaft, The rotating body at the downstream end contacts the inner peripheral surface of the winding core. Further, with the rotation of the winding core, the rotating body at the downstream end is pressed against the inner peripheral surface of the winding core, whereby the winding core is fixed.

In a preferred embodiment, the resilient biasing means comprises a plurality of springs. Then, each spring is arranged at an angular interval around the winding shaft, engages with the rotating body at the downstream end, and each spring elastically urges the rotating body.

[0007] A plurality of swinging members are used in place of each support shaft, and a plurality of non-rotating bodies are used in place of each rotating body. Each of the non-rotating bodies is elastically urged by elastic urging means. The swinging member swings around the pin, and the non-rotating member at the downstream end of the non-rotating body at the upstream end and the downstream end of the swinging member contacts the inner peripheral surface of the winding core. Good.

[0008]

[Explanation of the embodiment]

 Hereinafter, embodiments of the present invention will be described.

In FIG. 1, this is a slitter winding core fixing device for fixing a plurality of winding cores 1, and has a plurality of holders 2. The holder 2 is similar to that of Japanese Utility Model Registration No. 303928, and is ring-shaped, provided on the winding shaft 3 and arranged at an axial interval, and rotatably supported by the bearing 4. It has been.

Further, similarly to the publication, a plurality of housing grooves 5 are formed on the outer peripheral surface of the holder 2 in each holder 2, and as shown in FIG. Are arranged at an angular interval in front of each other and are housed in the housing groove 5. The pin 6 extends in the axial direction of the winding shaft 3, and both ends are fixed to and supported by the holder 2. Therefore, each pin 6 is supported by the winding shaft 3, the bearing 4 and the holder 2. Further, similarly to the publication, a plurality of support shafts 7 are housed in the housing grooves 5. The support shaft 7 extends in the rotation direction of the winding shaft 3 and has an upstream end and a downstream end in the rotation direction. Each support shaft 7 is swingably supported by each pin 6 and protrudes from both sides of each pin 6. Further, a plurality of rotating bodies 8 are housed in the housing grooves 5, and the rotating bodies 8 are formed of rollers, provided at the upstream end and the downstream end of each support shaft 7, and rotatably mounted. A gear may be used for the rotating body 8 and this may be rotatably attached to the support shaft 7.

Furthermore, this device has a plurality of cylinder blocks 9. The cylinder block 9 is also similar to that of the same publication, is in the shape of a ring, is disposed between the holders 2 and is fitted and fixed to the outer peripheral surface of the winding shaft 3. Further, a plurality of axial holes are formed in each cylinder block 9, and a piston 10 is inserted into each axial hole to supply fluid pressure such as air to each cylinder block 9. The piston 10 can be engaged with the end face of the holder 2 and pressed.

Further, the rotating bodies 8 of this device are elastically biased by the elastic biasing means. The elastic biasing means includes a plurality of springs 11. Further, each spring 11 is arranged at an angular interval around the winding shaft 3, is housed in the housing groove 5, is mounted at an appropriate position of the holder 2, and in the housing groove 5, each spring 11 is The rotating body 8 is located inside the rotating body 8, and is engaged with the rotating body 8 at the downstream end of the rotating body 8 at the upstream end and the downstream end of the support shaft 7. It is energized.

Therefore, in this device, when each winding core 1 is arranged at an axial distance around the winding shaft 3 and its position corresponds to the adjacent pair of holders 2, each spring 11 Each rotating body 8 is elastically urged, and each support shaft 7 swings around its pin 6, and the downstream rotating body 8 of the upstream and downstream end rotating bodies 8 of the support shaft 7 is wound up. It contacts the inner peripheral surface of the core 1. Thereafter, when the winding shaft 3 is rotated by the drive motor, the torque is transmitted to the cylinder block 9 and the piston 10. Further, torque is transmitted by the friction between the piston 10 and the holder 2, and the holder 2 rotates, and accordingly, the rotating body 8 at the downstream end is pressed against the inner peripheral surface of the winding core 1 and bites. As a result, the winding core 1 is locked and fixed.

For example, when the take-up shaft 3 and the holder 2 rotate in the counterclockwise direction in FIG. 2, each of the rotating bodies 8 is elastically urged by each of the springs 11, and each of the support shafts 7 around the pin 6. 2. Swing clockwise. Therefore, as shown in FIG. 3, the rotating body 8 at the downstream end of the rotating body 8 at the upstream end and the downstream end of the support shaft 7 comes into contact with the inner peripheral surface of the winding core 1. Thereafter, with the rotation of the winding shaft 3 and the holder 2, the rotating body 8 at the downstream end is pressed against the inner peripheral surface of the winding core 1 and bites, whereby the winding core 1 is locked and fixed.

Therefore, unlike the apparatus disclosed in Japanese Utility Model Registration No. 306328, in this device, each rotating body 8 is elastically urged by each spring 11 to forcibly swing each support shaft 7, and the support shaft 7 is rotated. The rotating body 8 at the downstream end of the rotating body 8 at the upstream end and the downstream end of 7 can be brought into contact with the inner peripheral surface of the winding core 1. Therefore, the rotating body 8 at the downstream end can be pressed against the inner peripheral surface of the take-up core 1 as the take-up shaft 3 rotates, so that the take-up core 1 is securely locked and fixed. can do.

Thereafter, torque is transmitted by the friction between the piston 10 and the holder 2, and each winding core 1 can be driven and rotated independently of each other. After slitting a web of paper, plastic film, or the like, the web is wound. It can be wound around the take-up core 1.

Further, after the completion of the winding of the web, the take-up shaft 3 and the holder 2 are driven in the reverse direction and slightly rotated, so that each support shaft 7 swings around the pin 6 in the reverse direction. Then, the rotating body 8 is separated from the winding core 1. As a result, the locked state is released, and the wound product is supported by the rotating body 8 of the support shaft 7. The wound product can be rotated in the opposite direction, thereby releasing the locked state.

Therefore, thereafter, the wound product can be moved in the axial direction of the winding shaft 3 and pulled out from the winding shaft 3. When the winding product is moved in the axial direction of the winding shaft 3, the rotating body 8 of each holder 2 rotates around the support shaft 7 in accordance with the movement of the winding product, thereby guiding the winding product. And its resistance is small. Therefore, even if the weight of the wound product is large, it can be easily moved and extracted.

It is also conceivable to use a plurality of swinging members instead of each support shaft 7 and use a plurality of non-rotating members instead of each rotating body 8. Then, each of the non-rotating members is elastically urged by the elastic urging means, and each of the swinging members swings around the pin 6, and the downstream end of the non-rotating members at the upstream end and the downstream end of the swinging member. Is brought into contact with the inner peripheral surface of the winding core 1. Thereafter, as the take-up core 1 rotates, the non-rotating body at the downstream end is pressed against the inner peripheral surface of the take-up core 1 and bites into it, whereby the take-up core 1 may be locked and fixed. .

[Effect of the invention]

As described above, according to the present invention, each rotating body 8 or non-rotating body is elastically urged by the elastic urging means. Therefore, each support shaft 7 or the swinging member is forcibly swung, and among the rotating body 8 or the non-rotating body at the upstream end and the downstream end of the support shaft 7 or the swinging member, the downstream rotating body 8 or the non-rotating body. The rotating body can be brought into contact with the inner peripheral surface of the winding core 1. Therefore, with the rotation of the winding shaft 3, the rotating body 8 or the non-rotating body at the downstream end is pressed against the inner peripheral surface of the winding core 1 so as to bite, and the winding core 1 is securely locked and fixed. And achieve their intended objectives.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing an embodiment of the present invention.

FIG. 2 is a cross-sectional view of the device of FIG.

FIG. 3 is an explanatory diagram showing a relationship between a rotating body and a winding core of FIG. 2;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Take-up core 3 Take-up shaft 6 Pin 7 Support shaft 8 Rotating body 11 Spring

Claims (3)

[Utility model registration claims] 1. A plurality of pins extending in an axial direction of a winding shaft and arranged at an angular interval around the winding shaft, and extending in a rotating direction of the winding shaft, and an upstream end and a downstream end in a rotating direction. A plurality of supporting shafts that are swingably supported by the respective pins and protrude on both sides of the respective pins, a plurality of rotating bodies provided at an upstream end and a downstream end of the respective supporting shafts, Each of the rotating bodies is elastically urged, and each of the support shafts is swung around its pin, and among the rotary bodies at the upstream end and the downstream end of the support shaft, the rotary body at the downstream end is rotated by the inner circumference of the winding core. And a resilient urging means to be brought into contact with the surface, with the rotation of the winding shaft, the rotating body at the downstream end is pressed against the inner peripheral surface of the winding core,
The winding core fixing device, wherein the winding core is fixed. 2. The resilient biasing means comprises a plurality of springs, each spring being disposed at an angular interval around the winding shaft, engaging with the rotating body at the downstream end, and The winding core fixing device according to claim 1, wherein each of the rotating bodies is elastically biased by a spring. 3. A plurality of pins extending in the axial direction of the winding shaft and arranged at angular intervals around the winding shaft, and extending in the rotating direction of the winding shaft, and the upstream and downstream ends in the rotating direction. A plurality of swing members that are swingably supported by the respective pins and protrude on both sides of the respective pins, and a plurality of non-rotating members provided at upstream and downstream ends of the respective swing members. And elastically urge each of the non-rotating members to cause each of the rocking members to oscillate around its pin, and to rotate the non-rotating members at the downstream end among the non-rotating members at the upstream and downstream ends of the oscillating members. And a resilient urging means for bringing the body into contact with the inner peripheral surface of the winding core. With the rotation of the winding core, the non-rotating body at the downstream end is pressed against the inner peripheral surface of the winding core. A winding core fixing device for fixing the winding core.